Short description
...
...
Reference 1: http://physics.info/shock/
|
A shockwave is high pressure wave produced by an object that travels faster than the speed of sound according to the same medium characteristics, in which different changes can be measured for example; extreme pressure and rising of the temperature.
The visualisation of the shockwave can be seen in the following picture.
|
History
...
...
historia por francisto.....
Shockwave
...
...
As an object moves through a gas, the gas molecules are deflected around the object. If the speed of the object is much less than the speed of sound of the gas, the density of the gas remains constant and the flow of gas can be described by conserving momentum and energy. As the speed of the object increases towards the speed of sound, we must consider compressibility effects on the gas. The density of the gas varies locally as the gas is compressed by the object
...
Reference 3: Screenshot from the video bellow.
Mach Number
...
...
Reference 4:http://www.grc.nasa./airplane/mach.html | This number was proposed by the Austrian phycisist and philosofer Ernst Mach in (1838-1916), one of the most notorius teorist phisicist.
The mach number is known as a measurement or unit and is defined as the coeficient of the velocity of an object and the velocity of the sound.
This number is used to express the velocity of an object taking the sound velocity as a reference, something very interesting about the moment is that velocity of sound changes depending on the atmospheric conditions. For example, with a higher altitude compare to the sea level, the speed of sound is less than the one found at the sea level. |
Video
...
...
| Widget Connector |
|---|
| width | 500 |
|---|
| url | https://www.youtube.com/watch?v=gWGLAAYdbbc |
|---|
| height | 350 |
|---|
|
References
...
...
Reference 1: http://physics.info/shock/
...
Reference 3: Screenshot from the video bellow.
Reference 4: http://www.grc.nasa.gov/WWW/k-12/airplane/mach.html
Image Removed
Video 1: https://www.youtube.com/watch?v=gWGLAAY